1,2-Dichloroethylene
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1,2-Dichloroethylene
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CAS No:
540-59-0
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Formula:
C2H2Cl2
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Chemical Name:
1,2-Dichloroethylene
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Synonyms:
Ethene,1,2-dichloro-;Ethylene,1,2-dichloro-;1,2-Dichloroethene;1,2-Dichloroethylene;Dioform;Acetylene dichloride;sym-Dichloroethylene
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CAS No:
Description
clear colorless to pale yellow liquid Acetylene dichloride is a colorless liquid (usually a mixture of the cis and trans isomers) with a slightly acrid, chloroform-like odor. It is incompatible with strong oxidizers, strong alkalis, potassium hydroxide, and copper. Acetylene dichloride is highly flammable and in a fi re gives off irritating or toxic fumes/gases. (Acetylene dichloride usually contains inhibitors to prevent polymerization.) 1,2-Dichloroethylene exists in three isomers, sym-, cis-
Characteristics
0.00000
1.93520
1,2-dichloroethylene, (mixed isomers) appears as a clear colorless liquid with ether-like odor. Mixture of cis and trans isomers. Flashpoint 36 - 43° F. Denser than water and insoluble in water. Vapors heavier than air.
1.28 g/cm3 (approx)
-50 °C
55 °C (approx)
43 °F
1.446-1.449
less than 1 mg/mL at 70° F (NTP, 1992)
5.32 psi ( 20 °C)
Oral-rat LD50: 770 mg/kg; Oral-Mouse LDL0: 3160 mg/kg
Flammable; heated to decompose gases such as phosgene and hydrogen chloride; hydrolyze to produce hydrochloric acid
Ethereal, slightly acrid
Safety Information
II
3.1
UN 1150 3/PG 2
2
11-20-52/53
7-16-29-61
KV9360000
F,Xn
Treasury is ventilated, low temperature and dry; stored and transported separately from oxidant
Mix with air to form explosive mixture;
Stable under recommended storage conditions.
P210-P273
H225-H332-H412
1,2-Dichloroethylene Use and Manufacturing
It is obtained from 1, 1, 2, 2-tetrachloroethane by dechlorination of zinc powder or iron powder; it can also be prepared by the reaction of acetylene and chlorine in an inert solvent; it can also be obtained by 1, 1, 2-trichloroethane It is obtained by cracking copper chloride contained on pumice stone.
It can be used as a solvent for paints, resins, waxes, rubbers, and cellulose acetate. It can be used in dry cleaning agents, insecticides, fungicides, anesthetics, low-temperature extractants, and refrigerants.
Computed Properties
Molecular Weight:96.94
XLogP3:1.9
Exact Mass:95.9533555
Monoisotopic Mass:95.9533555
Heavy Atom Count:4
Complexity:19.2
Undefined Bond Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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